General Information

The UltraESC is a sensor-less
three-phase brush-less DC motor
speed controller. It was developed
primarily for use in multi-rotor
helicopters. Of course usage in other
models is not a problem as long as
you are aware of the special features.
Please note for use in normal
helicopters and fixed-wing models
read the information in the configuration!

Its peculiarities are mainly in the
nature of regulation. This ESC
emphases quick response and high
signal resolution (about 2000 steps).
Further on there are in addition to the
normal sensor signal (50-500Hz PWM)
control options in order to enable
faster signal transmission.

For the settings there is a clear configuration program available.
Here you can configure the ESC and
additionally monitor live data such as
engine speed, input voltage and
preset of gas (throttle / speed).

Furthermore, the UltraESC has a
special active free-wheeling. This
allows not only to efficiently operate
motors at part load, but also a rapid
response during turn down. Thus gas
changes are not only implemented
when accelerating as quickly as
possible, but the motor is during
deceleration actively braked to
achieve faster the target speed.

To avoid errors in handling or hazards,
please read these instructions
carefully!

Warnings

- consider polarity (+ and -) (polarity
reversal leads to the destruction of the
regulator and could cause a fire!)

- Never start a brush-less motor
holding it in hand.

- In case of tests with mounted
propeller always keep sufficient
distance to it and make sure no small
parts can be aspirated.

- With active freewheeling during
dimming (braking) there are very high
currents and voltages fed back. If you
operate the controller connected to a
power supply, it may cause damage to
controller and power supply. (LiPo
batteries prevent excessive voltage
increases due to their low impedance)

- This is not a toy! Not suitable for
children.

This site is still under construction.
Additional content may be attached.